.TH TTDEBUG 1 "August 2023" "FreeType 2.13.2"
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.SH NAME
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ttdebug \- a TrueType bytecode debugger
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.SH SYNOPSIS
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.B ttdebug
.RI [ options ]
.I index size font
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.SH DESCRIPTION
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.B ttdebug
is an interactive TrueType bytecode debugger working in a terminal.
Its spartanic interface faintly resembles debuggers like
.BR gdb .
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.PP
For the specified
.IR font ,
a glyph with the given
.I index
and
.I size
is loaded, making it possible to trace the bytecode execution step by step.
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.PP
This program is part of the FreeType demos package.
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.SH OPTIONS
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.TP
.BI "\-I " ver
Use TrueType interpreter version
.IR ver .
Available versions are depending on compilation options of FreeType;
call
.B ttdebug
without an argument to get the actual list.
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.TP
.BI "\-f " face_index
To access member font
.IR face_index
(default zero) in TTCs.
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.TP
.BI "\-d\ \(dq" "axis1\ axis2\ .\|.\|." \(dq
Specify the design coordinates for each variation axis at start-up.
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.TP
.B \-v
Show version.
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